POKEMON Gen 1 Tier List: All Creatures Ranked

There are few properties in the world as big and iconic as the Pokemon franchise, something that has had a presence in almost all forms of digital media over the past 20 years. And so with our Pokemon Gen 1 tier list, we intend to rank each and every single one of the original roster of monsters. Here we will be discussing the original 151 creatures, and we will rank them from S to D based on their various strengths and weaknesses. 

Gen 1 is famous for having some of the most iconic Pokemon of all time. Take Pikachu and Charizard, for example, two monsters that are absolute staples of the series and are almost consistently ranked as some of the most popular in any Pokemon list. And although there are over a hundred more of them, we will still try our best to do them all justice.

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Key Points

• There are 151 Gen 1 Pokemon in total.
• Each creature is ranked on its Attack, Defence, Evolution Tree, and moves.
• Mewtwo, Mew, Alakazam, Balstoise, Nidoking, and Nidorino are among the highest-ranked entries.
• Metapod, Gyarados, Ekans, Zubat, Arbok, and Kakuna are some of the worst-performing entires.

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Summary

The table below shows each Pokemon ranked into their respective tiers.

S Rank	A Rank	B Rank	C Rank	D Rank
Mewtwo	Bulbasaur	Venasaur	Charmeleon	Rattata
Mew	Charmander	Ivysaur	Caterpie	Weedle
Alakazam	Squirtle	Snorlax	Pidgeot	Nidorina
Balstoise	Charizard	Wartortle	Cubone	Butterfree
Nidoking	Beedrill	Seel	Abra	Clarify
Nidorino	Golem	Dewgong	Kadabra	Wigglypuff
Pickachu	Pidgeott	Grimer	Nidoqueen	Magikarp
Articuno	Starmie	Muk	Nidoran-m	Raticate
Zapdos	Lapras	Shellder	Persian	Metapod
Moltres	Dratini	Cloyster	Psyduck	Gyarados
Machoke	Aerodactyl	Gastly	Growlithe	Ekans
Machamp	Dragonair	Haunter	Exeggcute	Zubat
Weepinbell	Dragonite	Gengar	Marowak	Arbok
Tentacool	Electabuzz	Onix	Geodude	Kakuna
Slowbro	Magmar	Clefable	Krabby
Magnemite	Pinsir	Vulpix	Lickitung
Magneton	Koffing	Ninetales	Raichu
Farfetch’d	Weezing	Jigglypuff	Sandshrew
Dodrio	Rhyhorn	Golbat	Mr Mime
Duduo	Rhydon	Oddish	Arcanine
	Tangela	Hitmochan	Poliwag
	Kangaskhan	Exxeggutor	Meowth
	Horsea	Pidgey	Hypno
	Seadra	Slowpoke	Voltorb
	Goldeen	Gloom	Tentacruel
	Seaking	Vileplume	Ditto
		Paras	Eevee
		Parasect	Vaporeon
		Venonat	Jolteon
		Golduck	Flreon
		Venomoth	Porygon
		Graveler	Omanyte
		Poliwrath	Kabutops
		Ponyta	Machop
		Drowzee	Diglett
		Kingler	Bellsprout
		Electrode	Spearow
		Hitmonlee	Poliwhirl
		Mankey	Victreebel
		Primeape	Rapidash
		Dugtrio	Staryu
			Scyther
			Jynx
			Fearow
			Kabuto
			Sandslash
			Nidoran-f
			Chansey
			Omastar
			Tauros

For detailed descriptions, please continue reading the article. 

S Tier

The first category on our list is the S tier. These Pokemon can not be seen abundantly in nature, are legendary, have superb abilities, and are placed in the S tier. These Pokemon are powerful enough to knock down every other Pokemon. 

Let’s take a look at all the top-notch Pokemon.

Mewtwo

Mewtwo is a psychic type Pokémon, and it has not been seen to evolve, but it can go for mega evolution upon certain conditions. The genetics of this Pokémon matches Mew.

Type	Psychic
Evolution from	None
Evolves to	Mewtwo X & Mewtwo Y (Megas)

Mew

Mew is one of its kind because it does not evolve into any other type of Pokémon. It comes only during Nintendo events and can synchronize. Mew is a psychic type Pokémon.

Besides, all three dark, bug, and ghost are its weaknesses. The best thing about Mew is that it can convert itself into anything it wishes for and hide when required. 

Type	Psychic
Evolution from	None
Evolves to	None

Alakazam

Alakazam is an intelligent psychic-type Pokémon with the ability to affect technology around it with the help of brainwaves. It has the same strengths and weaknesses as that Abra and Kadabra. When Kadabra is exposed to a linking cord, Alakazam is produced.

Type	Psychic
Evolution from	Abra -> Kadabra
Evolves to	Alakazam (Mega)

Blastoise

The evolved form of Squirtle and Wartortle, Blastoise is the next S tier of the list. It is a water pokemon capable of causing destruction using its water cannons at its shoulders. Blastoise also has incredible defensive abilities and is the evolved form of Squirtle and wartortle. 

Type	Water
Evolution from	Squirtle -> Wartortle
Evolves to	Blastoise (Mega, Gigantamax)

Nidoking

The last Pokemon which we have placed in the S tier is Nidoking. It is the evolved form of Nidoran and Nidorino. Nidoking uses its super-powerful tail to attack enemies and destroy objects. Lastly, Nidoking’s ability to use thunderbolt and hyper beam makes it the best. 

Type	Poison/Ground
Evolution from	Nidoran -> Nidorino
Evolves to	None

Nidorino

Farfetch’d do not evolve further, and it is a normal/flying type Pokémon with a duck-like structure. It can die over its shoot and fight for the best ones. It has a green onion stalk which is used as a weapon. 

Type	Normal/Flying
Evolution from	None
Evolves to	None

Dodrio

With Dodrio evolution of the normal/flying type ends, and it becomes a three-headed Pokémon. Three heads are used to express joy, sorrow, and anger while planning and one of the heads stay awake while Dodrio is resting.

Type	Normal/Flying
Evolution from	Doduo
Evolves to	None

Doduo

Duduo is a normal/flying type Pokémon with a skilful running capability compared to flying. It can race up to 60mph and has two heads. It evolves into Dodrio at level 31. 

Type	Normal/Flying
Evolution from	None
Evolves to	Dodrio

A Tier

The next category that comes after the S tier is the A tier. It includes Pokemon, which are great, but compared to S-tier pokemon, they are relatively weak. These Pokemon have unique strengths but have one or two flaws, making them slightly more vulnerable. 

Continue reading to find out all the A-tier Pokemon.

Bulbasaur

The frog-like grass-type Pokemon, Bulbasaur, is the first A-tier character on our list. 

Bulbasaur’s agility is impressive, and by using a power whip, it can jump high in the air and hit targets with brutal force. The only drawback is its moves against fire-type Pokemon. 

Type	Grass/Poison
Evolution from	None
Evolves to	Ivysaur -> Venusaur

Charmander

Charmander is a fire-type, human-friendly Pokemon which is known for its aggression. It is a shy pokemon but once trained, and it can fight Pokemon twice its size.

Squirtle

Squirtle is a water-type Pokemon that has some extraordinary abilities. It uses a Bubble attack that causes significant damage to enemies. It Evolves to Wartotle at level 16 and Blastoise at level 32.

With all these incredible abilities, Squirtle cannot fight electric-type Pokemon. 

Type	Water
Evolution from	None
Evolves to	Wartortle -> Blastoise

Charizard

Charizard is one of the most popular and powerful Pokemon. It is a Fire/Flying type that was first introduced in Generation 1, and has since been one of the most recognized monsters of them all.

Type	Fire/Flying
Evolution from	Charmander -> Charmeleon
Evolves to	Charizard X & Charizard Y (Megas)

Beedrill

The next A-tier character is Beedrill, a bee-type pokemon capable of causing tremendous amounts of damage to opponents. It is the evolved form of Kakuna and Weedle.

Beedrill uses poisonous stingers to attack its enemies. It does not do well against ghost, Fire, and rock-type Pokemon.

Type	Bug/Poison
Evolution from	Weedle -> Kakuna
Evolves to	Beedrill (Mega)

Golem

Golem is known for its ability to roll down the mountains and appears as a giant boulder having all three features, including head, arms, and legs. Lastly, Golem is vulnerable to water-type Pokemon as they are more dominant over it. 

Type	Rock/Ground
Evolution from	Geodude -> Graveler
Evolves to	None

Pidgeotto

Pidgeotto, a Normal/Flying type Pokémon introduced in Generation 1, is known as the Bird Pokémon. It further evolves into a Pidgeot at level 36. its strengths and drawbacks are similar to the type before evolution.

Type	Normal/Flying
Evolution from	Pidgey
Evolves to	Pidgeot

Starmie

Evolved from Staryu at level 36, a water pokemon, Starmie is more of a water and psychic-type character. Starmie’s water gun is one of its best attacks, and its speed is impressive. 

 It does not evolve further. It is considered an enigmatic character and seems like a sea star.

Type	Water/Psychic
Evolution from	Staryu
Evolves to	None

Lapras

It is a water-type pokemon and is an intelligent creature capable of reading human minds. Lapras is also a water/ice-type Pokémon that can learn the HM surf and carry you around on its back in the Gen 1 games.

Type	Water/Ice
Evolution from	None
Evolves to	Lapras (Gigantamax)

Dratini

Dratini is a dragon-type Pokémon that was almost undiscovered until a fisherman pulled it out of the ocean after a hectic 10 hours of fishing. It evolves at level 30 into Dragonair. 

Type	Dragon
Evolution from	None
Evolves to	Dragonair -> Dragonite

Aerodactyl

Aerodactyl is considered a fossil Pokémon and was rejuvenated from amber. It is a rock/flying type with no evolution but has a mega evolution into mega Aerodactyl. It has a rock head and pressure ability.

Type	Rock/Flying
Evolution from	None
Evolves to	Aerodactyl (Mega)

Dragonair

Dragonair is a dragon-type Pokémon that evolves from Dratini at level 30 into Dragonite at level 55. It can shed skin. Weaknesses of Dragonair include fairy, Ice, and dragon.

Type	Dragon
Evolution from	Dratini
Evolves to	Dragonite

Dragonite

Dragonite is a dragon/flying type of Pokémon which evolves into Dragonair type at level 55. As it is a dragon type, it can also fly and use dragon moves.

Type	Dragon/Flying
Evolution from	Dratiti -> Dragonair
Evolves to	None

Electabuzz

Electabuzz is an electric type of Pokémon which evolves from Elekid and evolves into Electrivire. It can gather energy when it comes closer to the plants.

Type	Electric
Evolution from	Elekid
Evolves to	Electivire

Magmar

Magmar is a fire-type Pokémon that evolves from Magby and evolves into Magmortar. It was listed as the 8^th best among all the fire-type Pokémon.

Type	Fire
Evolution from	Magby
Evolves to	Magmortar

Pinsir

Pinsir is a bug-type Pokémon, and it undergoes Mega evaluation. It has enormous horns, which it uses to throw things.

Type	Bug
Evolution from	None
Evolves to	Pinsir (Mega)

Koffing

Koffing is a poison-type creature that evolves into Weezing at level 35. It is based on wind pollution and can explode when inflation increases beyond a limit.

Type	Poison
Evolution from	None
Evolves to	Weezing

Weezing

Weezing is a poison-type Pokémon that comes after the evolution of Koffing at level 35. 

Type	Poison/Fairy
Evolution from	Koffing
Evolves to	None

Rhyhorn

Rhyhorn is a ground rock type of Pokémon which evolves into Rhydon at level 42. 

Type	Ground/Rock
Evolution from	None
Evolves to	Rhydon -> Rhyperior

Rhydon

Rhydon evolves from Rhyhorn at level 42 into Rhyperior and has the ability of light head along with rock head. Weaknesses of Rhydon include Grass, steel, Ice, Ground, Fighting, and water. 

Type	Ground/Rock
Evolution from	Rhyhorn
Evolves to	Rhyperior

Tangela

Tangela is a grass-type Pokémon, and it evolves into Tangrowth Pokémon. Tangela can entangle anything that comes close to it. It has the chlorophyll ability and leaf guard. 

Type	Grass
Evolution from	None
Evolves to	Tangrowth

Kangaskhan

Kangaskhan is a normal type of Pokémon, and it was the second creation of Game Freak. It can carry its baby in the pouch until it grows older. Kangaskhan evolves into Mega Evolution.

Type	Normal
Evolution from	None
Evolves to	Kangaskhan (Mega)

 Horsea

Horsea is a water-type Pokémon that evolves into Seadra at level 37. Horsea has a fear of washing away, so it curls its tail around the coral branches.

Type	Water
Evolution from	None
Evolves to	Seadra -> Kingdra

Seadra

Seadra is a water-type Pokémon that evolves from Horsea and evolves into Kingdra at level 32. 

Type	Water
Evolution from	Horsea
Evolves to	Kingdra

Goldeen

Goldeen is a water-type Pokémon that evolves into Seaking at level 33. Water veil and swirl swift are its abilities. 

Type	Water
Evolution from	None
Evolves to	Seaking

Seaking

Seaking is also a water-type Pokémon that evolves from Goldeen at level 33. It ends the evolution of its kind here. Its abilities and weaknesses match Goldeen.

Type	Water
Evolution from	Goldeen
Evolves to	None

B Tier

The next category in our article is the B tier, where you will find some cool pokemon in the B tier. The Pokemon mentioned in this category have above-average performance levels and some flaws that make them weak. These are still great entires and can help you out extensively in a Pokemon gen 1 nuzlocke tier list.

So let’s take a dive and explore all the B-tier Pokemon. 

Venasaur

The first B-tier Pokemon on our list is Venasaur. It is the evolved form of Bulbasaur and Ivysaur. Venasaur is a combination of grass and poison-type pokemon with some excellent abilities. 

The disadvantages associated with Venasaur are its weight which impacts its speed significantly. 

Type	Grass/Poison
Evolution from	Bulbasaur -> Ivysaur
Evolves to	Venusaur (Mega, Gigantamax)

Ivysaur

The next character in B-tier is Ivysaur, the evolved form of Bulbasaur. It is a grass-type pokemon with attacks that can defeat enemies in one shot. 

Ivysaur is weak against Fire, ice, psychic, and flying type pokemon, so we have placed it in the B-tier. 

Type	Grass/Poison
Evolution from	Bulbasaur
Evolves to	Venusaur

Snorlax

The evolved form of Munchlax, Snorlax is a giant pokemon with incredible strengths. It can use the hyper beam to tear down enemies, and body slam is another solid move of Snorlax. For an entry like this, the B rank of the Pokemon Gen 1 Tier List is perfect.

Type	Normal
Evolution from	Munchlax
Evolves to	Snorlax (Gigantamax)

Wartortle

 It is a water-type pokemon and the evolved form of Squirtle. Wartortle can use the hydro pump to damage its opponents.

Wartortle’s inability to fight effectively against the grass and electric-type pokemon makes it weak.

Type	Water
Evolution from	Squirtle
Evolves to	Blastoise

Seel

Seel is a water-type Pokémon and evolves into Dewgong at level 34 and can thicken fat and hydration but fears Grass and electricity. Its design is based on real-life seal features. Seel can also make a hole in the Ice to breathe. 

Type	Water
Evolution from	None
Evolves to	Dewgong

Dewgong

It is a water/ice type of Pokémon, and the evolution of this category ends here. Real-life dugong inspires design.

Type	Water/Ice
Evolution from	Seel
Evolves to	None

Grimer

Grimmer is a poison-type Pokémon with a slippery body that can slip into almost anything. It evolves into Muk at level 38. It can sneak and good hold and is afraid of Psychic and the Ground.

Type	Poison
Evolution from	None
Evolves to	Muk

Muk

Muk ends the evolution of poison-type Pokémon, and it smells pathetic that it can cause others to faint. And has the same strengths and weaknesses as Grimer. 

Type	Poison
Evolution from	Grimer
Evolves to	None

Shellder

Shellder is a water-type Pokémon that evolves into Cloyster at level 36 with an ability of shell armour and skill link but fear of Grass and electricity. It sticks out its long pink tongue when it sleeps.

Type	Water
Evolution from	None
Evolves to	Cloyster

Cloyster

Cloyster is a water/ice-type Pokémon and can rotate at an angle of 180 degrees which is the only feature that makes it different from Shellder.

Type	Water/Ice
Evolution from	Shellder
Evolves to	None

Gastly

Gastly is a ghost/poison-type Pokémon with the ability to hide under structures to stop the blowing effect of air. It converts into Haunter at level 25 with the help of Arceus.

Type	Ghost/Poison
Evolution from	None
Evolves to	Haunter -> Gengar

Haunter

After evolution from Gastly, Haunter, which is also a ghost/poison type-evolves into Gengar level 36. Haunter can lick, which helps sap the victim’s life. 

Type	Ghost/Poison
Evolution from	Gastly
Evolves to	Gengar

Gengar

Gengar is the last member of its evolution and is said to be a human ghost. It has the ability of a cursed body and Levitates with the fear of the dark, spirits, and psychics.

Type	Ghost/Poison
Evolution from	Gastly -> Haunter
Evolves to	Gengar (Mega, Gigantamax)

Onix

Onix is a rock/ground type Pokémon, and one of the most iconic ground types in the entire franchise.

Type	Rock/Ground
Evolution from	None
Evolves to	Steelix

Clefable

Clefable is a Normal/Fairy type Pokémon presented in Generation 1, known as the Fairy Pokémon. It has the power to fight and is robust against dragons and bugs.

Type	Fairy
Evolution from	Cleffa -> Clefairy
Evolves to	None

Vulpix

It is a Fire type of Pokémon which was introduced in Generation 1. It is also known as the Fox Pokémon. It is strong against steel, Fire, and Ice and weak against Ground and rock. 

Type	Fire
Evolution from	None
Evolves to	Ninetales

Ninetales

It is a Fire type of Pokémon which was introduced in Generation 1. It is also known as the Fox Pokémon. It is strong against Grass, Fire, and Ice and weak against Ground, rock, and water.

Type	Fire
Evolution from	Vulpix
Evolves to	None

Jigglypuff

Jigglypuff is a Normal/Fairy type Pokémon known as a Balloon  Pokémon. It is strong against Ghosts and Dragons and weak against Poison and Steel. 

Type	Normal/Fairy
Evolution from	Igglybuff
Evolves to	Wigglytuff

Golbat

Golbat is also a poison/flying type Pokémon, but it is a dual type of creature. Its evolution occurs at level 22 from Zubat, and upon a high friendship level, it is converted into Corbat. 

Type	Poison/Flying
Evolution from	Zubat
Evolves to	Crobat

Oddish

A grass/poison type Pokémon has a fantastic ability to burry itself into the soil for absorption of nutrients, and they are seen wandering at nighttime while shedding its seeds. It evolves into Gloom at level 21. 

Type	Grass/Poison
Evolution from	None
Evolves to	Gloom -> Vileplume or Bellossom

Hitmonchan

Hitmonchan is a fighting type Pokémon that evolves from Tyrogue at level 20, and evolution ends here. Interestingly, the name of the Pokémon is based on the actor Jackie Chan.

Type	Fighting
Evolution from	Tyrogue
Evolves to	None

Exeggutor

Exeggutor is a grass/psychic type Pokémon with three heads that think differently, and these heads often make it difficult for it to move. It evolves from Exeggcute at level 36 and ends the evolution process here.

Type	Grass/Psychic
Evolution from	Exeggcute
Evolves to	None

Consider Reading: Pokemon Game Tier List: All Games Ranked [2023]

Pidgey

Pidgey, introduced in Generation 1, is a Normal/Flying type Pokémon known as the Tiny Bird Pokémon. It evolves to Pidgeotto and Pidgeot at levels 18 and 36. 

Type	Normal/Flying
Evolution from	None
Evolves to	Pidgeotto -> Pidgeot

Slowpoke

Slowpoke is a water/psychic Pokémon that is not really considered to be all that smart.

Type	Water/Psychic
Evolution from	None
Evolves to	Slowbro or Slowking

Gloom

Being another glass/poison type Pokémon, it is unique in its way as it gives a terrible reek due to leaves present on its head during a dangerous encounter. 

Type	Grass/Poison
Evolution from	Oddish
Evolves to	Vileplume or Bellossom

Vileplume

The category of Vileplume is grass/poison type that has the honour of having the biggest petals. This attracts prey, which is then immersed in toxic spores.

Type	Grass/Poison
Evolution from	Oddish -> Gloom
Evolves to	None

Paras

Paras is Bug/Grass type Pokémon that helps originate the Parasect Pokémon at level 24. Its weaknesses include Ice, Fire, bug, flying, rock, and Poison. 

Type	Bug/Grass
Evolution from	None
Evolves to	Parasect

Parasect

Thanks to Paras evolution, Parasect is created when a parasitic mushroom completely takes over the body of its generous host. Following that, it is also a Bug/Grass-type Pokémon.

Type	Bug/Grass
Evolution from	Paras
Evolves to	None

Venonat

A bug/poison-type Pokémon can navigate in the dark, which is only possible due to its radar-like eyes. At level 31, it evolves into Venomoth.

Type	Bug/Poison
Evolution from	None
Evolves to	Venomoth

Golduck

Psyduck is the evolved form of Golduck and is also a water-type Pokémon with the same abilities and weaknesses as its predecessor. But it is much smarter.

Type	Water
Evolution from	None
Evolves to	Psyduck

Venomoth

It is also a bug/poison type Pokémon since it evolves from Venonat. Its unique ability is that it can shed poisonous scales from its wings. Flying, rock, Fire, and psychic are its weaknesses.

Type	Bug/Poison
Evolution from	Venonat
Evolves to	None

Graveler

The second member of rock/ground type Pokémon seems like a big rock with four arms (two small and two large arms). It evolves into Golem at 36.

Type	Rock/Ground
Evolution from	Geodude
Evolves to	Golem

Poliwrath

It evolves from Poliwhirl, and it is water/fighting type Pokémon. The good news is that this Pokemon can go as far as the Pacific Ocean effortlessly. 

Type	Water/Fighting
Evolution from	Poliwag -> Poliwhirl
Evolves to	None

Ponyta

Ponyta is a fire-type Pokémon with the ability to choose to flame to burn humans or not. It is borns with weak legs and strengthens them by walking with parents. 

Type	Fire
Evolution from	None
Evolves to	Rapidash

Drowzee

Drowzee evolves into Hypno at level 26, a psychic-type Pokémon. Remember, if you ever feel itchy after sleeping, then a Drowzee must have stolen your dreams, as insomnia is its best ability. It can also be a forewarning while dark, bugs, and ghosts make it fear the most.

Type	Psychich
Evolution from	None
Evolves to	Hypno

Kingler

Kingler evolves from Krabby at level 28 and has a hyper cutter and armour as its abilities. Its weaknesses are water and Grass.

Type	Water
Evolution from	Krabby
Evolves to	Kingler (Gigantamax)

Electrode

Electrode is an electric-type Pokémon, and just like its predecessor Voltorb, is sort of a mysterious entity. 

Type	Electric
Evolution from	Voltorb
Evolves to	None

Hitmonlee

Hitmonlee is a fighting-type Pokémon that evolves into Tyrogue at level 20. Its ability is that it is limber and reckless, but Psychic, fairy, and flying are its weaknesses. 

Type	Fighting
Evolution from	Tyrogue
Evolves to	None

Mankey

Mankey is a fighting type of Pokemon with a short temper and the ability to fight aggressively. Upon being provoked, Mankey starts shaking and goes into a rage to attack its foes.

Type	Fighting
Evolution from	None
Evolves to	Primeape -> Annihilape

Primeape

Primeape is the evolved form of Mankey, and has many of the exact same fighting abilities. But it is larger in size.

Type	Fighting
Evolution from	Mankey
Evolves to	Annihilape

Dugtrio

A ground/steel type Pokémon is also considered a triplet Diglett. Just like its parent Diglett Pokémon, the entire body of the Pokémon has never been seen.

Type	Ground
Evolution from	Diglett
Evolves to	None

C Tier

The third category on the list is the C tier, where you will find average Pokemon. The characters mentioned in the C-tier do not have excellent performances, but they are not entirely useless. 

Let’s find out more about the C-tier Pokemon. 

Charmeleon

The first C-tier character is Charmeleon which is the evolved form of Charmander. It is a fire-type pokemon with just a couple of good moves.  

Type	Fire
Evolution from	Charmander
Evolves to	Charizard

Similar Write-up: POKEMON GO MASTER LEAGUE TIER LIST

Caterpie

Type	Normal/Flying
Evolution from	Pidgey -> Pidgeotto
Evolves to	Pidgeot (Mega)

Cubone

Cubone is a ground-type Pokémon that evolves into Marowak starting at level 28. It has a really depressing backstory.

Type	Ground
Evolution from	None
Evolves to	Marowak

Abra

Abra sleeps all the time, and it is also a psychic type, it can sense danger even while sleeping and has good teleportation capability. 

Type	Psychic
Evolution from	None
Evolves to	Kadabra -> Alakazam

Kadabra

Kadabra is the evolved form of Abra and is also a psychic type. Unlike its predecessor, it can actually stay awake for a whole.

Type	Psychic
Evolution from	Abra
Evolves to	Alakazam

Nidoqueen

Nidoqueen, a Poison-type Pokémon, is known as the Poison Pin Pokémon. It gains no additional abilities after being evolved into this version.

Type	Poison/Ground
Evolution from	Nidoran -> Nidorina
Evolves to	None

Nidoran-m

Nidoran, a Poison-type Pokémon introduced in Generation 1, is also known as the Poison Pin Pokémon. It is vital in Fighting and being weak against the Ground. 

Type	Poison
Evolution from	None
Evolves to	Nidorino -> Nidoking

Persian

Persian is the evolution of Meowth and is one of the normal type Pokemon on the roster.

Type	Normal
Evolution from	Meowth
Evolves to	None

Psyduck

Psysuck is a water/psychic type that constantly feels headaches and evolves into Golduck at level 33. 

Type	Water
Evolution from	None
Evolves to	Golduck

Growlithe

It is a fire-type Pokémon that evolves into Arcanice at level 36. It looks like a large fluffy dog and is very loyal.

Type	Fire
Evolution from	None
Evolves to	Arcanine

Exeggcute

Exeggcute is a grass/psychic type Pokémon that evolves into Exxeggutor at level 36. Its weaknesses include bugs, dark, flying, Poison, Ice, Fire, and ghost.

Type	Grass/Psychic
Evolution from	None
Evolves to	Exeggutor

Marowak

Marowak is a ground-type Pokémon that evolves from Cubone at level 28, ending the evolution line at that point.

Type	Ground
Evolution from	Cubone
Evolves to	None

Geodude

Geodude is a rock/ground type, and evolution starts here to get the first evolved creature, i.e., Graveler, at level 24 with the ability of rock head and sturdiness. 

Type	Rock/Ground
Evolution from	None
Evolves to	Graveler -> Golem

Krabby

Krabby is a water-type Pokémon and evolves into Kingler at level 28 with an ability of hyper-cutting and shell armour. Electricity and Grass are their weaknesses.

Type	Water
Evolution from	None
Evolves to	Kingler

Lickitung

Lickitung is a normal Pokémon with a long tongue that can be used as a weapon. It can also paralyse foes.

Type	Normal
Evolution from	Lickilicky
Evolves to	None

Raichu

Raichu is an Electric-type Pokémon shown in Generation 1, also known as the Mouse Pokémon. It has the same abilities as Pikachu.

Type	Electric
Evolution from	Pichu -> Pikachu
Evolves to	None

Sandshrew

Sandshrew is a Ground type Pokémon which is known as the Mouse Pokémon. Sandshrew is strong against rocks and weak against water and Ice. 

Type	Ground
Evolution from	None
Evolves to	Sandslash

Mr Mime

Mr Mime is a psychic/fairy-type Pokémon produced by the evolution of Mime Jr. It has the best-pantomiming capabilities in the world. 

Type	Psychic/Fairy
Evolution from	Mime Jr.
Evolves to	None

Arcanine

A fire-type character that evolves from Growlithe. It is weak to water and ice like most others of its type.

Type	Fire
Evolution from	Growlithe
Evolves to	None

Poliwag

Poliwag is a water-type Pokémon; water absorption and dampness are its strengths, while Grass and electricity are its weaknesses. 

Type	Water
Evolution from	None
Evolves to	Poliwhirl -> Poliwrath or Politoed

Meowth

Here we have one of the most iconic normal-type Pokemon in the franchise, and this popularity is mostly due to the talking Meowth that appears in the anime.

Type	Normal
Evolution from	None
Evolves to	Persian, Meowth (Gigantamax)

Hypno

It evolves from Drowzee at level 26, and it can put people to sleep with the help of its pendulum polishing.

Type	Psychic
Evolution from	Drowzee
Evolves to	None

Voltorb

Voltorb is an electric-type Pokémon that evolves into Electrode at level 30, and it really resembles a Pokeball.

Type	Electric
Evolution from	None
Evolves to	Electrode

Tentacruel

Tentacruel is a water/poison type Pokémon, a jellyfish with multiple tentacles and possessing two beaks and jewels on its head.

Type	Water/Poison
Evolution from	Tentacool
Evolves to	None

Ditto

Ditto is a normal type of Pokémon that can transform into any Pokémon. Dittos are not effective against the ghost.

Type	Normal
Evolution from	None
Evolves to	None

Eevee

Eevee is a normal type of Pokémon, and it has multiple different evolutions depending on the stone you use. And guess what? Eevee is also among the cutest entries on the list

Type	Normal
Evolution from	None
Evolves to	Eeveelutions

Vaporeon

Vaporeon is a water-type Pokémon that evolves from Eevee Pokémon when exposed to water stone.

Type	Water
Evolution from	Eevee
Evolves to	None

Jolteon

Jolteon is an electric-type Pokémon that evolves from Eevee Pokémon when exposed to thunder stone.

Type	Electric
Evolution from	Eevee
Evolves to	None

Flareon

Flareon is a fire-type Pokémon that evolves from Eevee Pokémon when exposed to firestone. 

Type	Fire
Evolution from	Eevee
Evolves to	None

Porygon

Porygon is a normal type and is one of the handful of man-made Pokemon in the world.

Type	Normal
Evolution from	Normal
Evolves to	Porygon2 -> Porygon-Z

Omanyte

Omanyte is a rock/water-type Pokémon that evolves into Omastar at level 40. Its weaknesses include Grass, Ground, Fighting, and electricity.

Type	Rock/Water
Evolution from	None
Evolves to	Omastar

Kabutops

Kabutops is a rock/water type Pokémon with an ability of battle armour and fast swimming. Its weaknesses are fighting, Grass, electricity, and Ground. .

Type	Rock/Water
Evolution from	Kabuto
Evolves to	None

Machop

Machop is a fighting-type Pokémon with the ability of no guards and guts. It is weak against psychic, flying, and fairy types. 

Type	Fighting
Evolution from	None
Evolves to	Machoke -> Machamp

Diglett

Diglett is a ground-type Pokémon that only appears as a small head poking up from the ground. 

Type	Ground
Evolution from	None
Evolves to	Dugtrio

Bellsprout

A grass/poison type Pokémon that evolves into Weepinbell at level 21. Like a lot of grass types, it is incredibly weak to fire attacks.

Type	Grass/Poison
Evolution from	None
Evolves to	Weepinbell -> Victreebel

Spearow

Spearow is a Flying-type Pokémon presented in Generation 1. It is known as the Tiny Bird Pokémon and deserves its spot on the Pokemon Gen 1 Tier List.

Type	Normal/Flying
Evolution from	None
Evolves to	Fearow

Poliwhirl

The tadpole Pokemon, Poliwhirl is a water type that evolves from Poliwag at level 25

Type	Water
Evolution from	Poliwag
Evolves to	Poliwrath or Politoed

Victreebel 

Victreebel is a grass/poison type Pokémon that is a partner of James in the anime for a brief period of time.

Type	Grass/Poison
Evolution from	Bellsprout -> Weepinbell
Evolves to	None

Rapidash

Like Ponyta, Rapidash is a fire-horse Pokemon with a mane made entirely of flames. It is the final evolution of its line.

Type	Fire
Evolution from	Ponyta
Evolves to	None

Staryu

Staryu is a water-type Pokémon that evolves into Starmie at level 36. It has the ability of natural cure and illumination.

Type	Water
Evolution from	None
Evolves to	Starmie

Scyther

It is a bug/flying type Pokémon that evolves into Scizor while a trading process upon holding a metal coat.

Type	Bug/Flying
Evolution from	None
Evolves to	Scizor

Jynx

Jynx is an ice/psychic Pokémon that evolves from Smoochum at level 30. Obliviousness and forewarning are the abilities of these Pokémon.

Type	Ice/Psychic
Evolution from	Smoochum
Evolves to	None

Fearow

Fearow is a Flying-type Pokémon shown in Generation 1. It is known as the Tiny Beak Pokémon. It has the same weakness and strengths as it had past the evolution.

Type	Normal/Flying
Evolution from	Spearow
Evolves to	None

Kabuto

Kabuto is a rock/water type Pokémon with an ability of battle armour and fast swimming. Its weaknesses are fighting, Grass, electricity, and Ground. 

Type	Rock/Water
Evolution from	None
Evolves to	Kabutops

Sandslash

Sandslash is a Ground type Pokémon which is known as the Mouse Pokémon. Its abilities are the same as the ones Sandshrew had.

Type	Ground
Evolution from	Sandshrew
Evolves to	None

Nidroran-f

Nidoran-f is a Poison-type Pokémon known as the Poison Pin Pokémon. It additionally evolves into Nidorina at level 16 and Nidoqueen using Moonstone. 

Type	Poison
Evolution from	None
Evolves to	Nidorina -> Nidoqueen

Chansey

Chansey is a normal type Pokémon that evolves from Happiny when it levels up while holding an Oval Stone.

Type	Normal
Evolution from	Happiny
Evolves to	Blissey

Omastar

Omastar is a rock/water type Pokémon. It evolves from Omanyte and ends the evolution line here. 

Type	Rock/Water
Evolution from	Omanyte
Evolves to	None

Tauros

Tauros is a normal type of Pokémon that undergoes no evolution. It wanders around grasslands in herds, and Ash from the anime has one in his roster.

Type	Normal
Evolution from	None
Evolves to	None

D Tier

The last category on our list is the D tier. If you want to know about the worst Pokemon with poor performance and many drawbacks, keep reading to the end. All those useless Pokemon with no good moves are placed in the D-tier.

Let’s take a look at it. 

Rattata

Rattata is rat-type Pokemon that is neither cute nor strong. It is also a normal type and possesses no redeemable qualities.

Type	Normal
Evolution from	None
Evolves to	Raticate

Similar Article: Pokemon Go Ultra League Tier List [Ver. 0.257]

Weedle

Weedle is a Bug/Poison type of Pokémon known as Hairy Bug Pokémon. It evolves to Kakuna and Beedrill at levels 07 and 10, respectively. It is mighty against Grass and insignificant against Fire.

Type	Bug/Poison
Evolution from	None
Evolves to	Kakuna -> Beedrill

Nidorina

Nidorina is a Poison-type Pokémon known as the Poison Pin Pokémon. Using the Moonstone, it further evolves into Nidoqueen. 

Type	Poison
Evolution from	Nidoran
Evolves to	Nidoqueen

Butterfree

Butterfree is a Bug/Flying type of Pokémon known as the Butterfly Pokémon. Its strength is fighting, and frailty is facing the rocks.

Type	Bug/Flying
Evolution from	Caterpie -> Metapod
Evolves to	Butterfree (Gigantamax)

Clefairy

Clefairy is a Fairy type Pokémon presented in Generation 1, known as the Fairy Pokémon. It evolves into Clefable using a moonstone. 

Type	Fairy
Evolution from	Cleffa
Evolves to	Clefable

Wigglytuff

Wigglytuff is a Normal/Fairy type Pokémon known as a Balloon Pokémon  It is strong against Ghosts, Dragons, and Bugs and weak against Poison and Steel.

Type	Normal/Fairy
Evolution from	Igglybuff -> Jigglypuff
Evolves to	None

Magikarp

Magikarp is a water-type Pokémon that evolves into Gyarados at level 20. Sadly, these are considered the most useless characters in the game until they transform into Mega Gyarados.

Type	Water
Evolution from	None
Evolves to	Gyarados

Raticate

Raticate, a Normal type Pokémon introduced in Generation 1, is known as the Mouse Pokémon. It is weak in Fighting and strong against ghosts.

Type	Normal
Evolution from	Rattata
Evolves to	None

Metapod

Metapod is a Bug type of Pokémon known as the Cocoon Pokémon. It evolves into Butterfree at level 32. Its strengths and weaknesses are similar to the type before evolution.

Type	Bug
Evolution from	Caterpie
Evolves to	Butterfree

Gyarados

Gyarados is a water/flying type Pokémon, which is considered a hard Pokémon when it comes it raising it. It can undergo mega evaluation.

Type	Water/Flying
Evolution from	Magikarp
Evolves to	Gyarados (Mega)

Ekans

Ekans, a Poison-type Pokémon that is also known as the Snake Pokémon. It evolves into Arbok at level 22.

Type	Poison
Evolution from	None
Evolves to	Arbok

Zubat

Zubat is a flying and poison-type Pokemon. Since it has no eyes, it cannot see what’s happening in its surroundings. Instead, it uses ultrasonic waves to detect objects in its path.

Type	Poison/Flying
Evolution from	None
Evolves to	Golbat -> Crobat

Arbok

Ekans, a Poison-type Pokémon, is known as the Cobra Pokémon. It is decisive in Fighting and is weak against bugs.

Type	Poison
Evolution from	Ekans
Evolves to	None

Kakuna

Kakuna is the last D-tier character on the Pokemon Gen 1 tier list. It is the evolved form of Weedle and is useless in many ways. 

Type	Bug/Poison
Evolution from	Weedle
Evolves to	Beedrill

Comparison Table

CHaracters	Tiers	Type	Evolve From	Evolve To
Mewtwo	S	Psychic	None	Mewtwo X & Mewtwo Y (Megas)
Mew	S	Psychic	None	None
Alakazam	S	Psychic	Abra -> Kadabra	Alakazam (Mega)
Balstoise	S	Water	Squirtle -> Wartortle	Blastoise (Mega, Gigantamax)
Nidoking	S	Poison/Ground	Nidoran -> Nidorino	None
Nidorino	S	Poison	Nidoran	Nidoking
Pickachu	S	Electric	Pichu	Raichu, Pikachu (Gigantamax)
Articuno	S	Ice/Flying	None	None
Zapdos	S	Electric/Flying	None	None
Moltres	S	Fire/Flying	None	None
Machoke	S	Fighting	Machop	Machamp
Machamp	S	Fighting	Machop -> Machoke	Machamp (Gigantamax)
Weepinbell	S	Grass/Poison	Bellsprout	Victreebel
Tentacool	S	Water/Poison	None	Tentacruel
Slowbro	S	Water/Psychic	Slowpoke	Slowbro (Mega)
Magnemite	S	Electric/Steel	None	Magneton -> Magnezone
Magneton	S	Electric/Steel	Magnemite	Magnezone
Farfetch’d	S	Normal/Flying	None	None
Dodrio	S	Normal/Flying	Doduo	None
Duduo	S	Normal/Flying	None	Dodrio
Bulbasaur	A	Grass/Poison	None	Ivysaur -> Venusaur
Charmander	A	Fire	None	Charmeleon -> Charizard
Squirtle	A	Water	None	Wartortle -> Blastoise
Charizard	A	Fire/Flying	Charmander -> Charmeleon	Charizard X & Charizard Y (Megas)
Beedrill	A	Bug/Poison	Weedle -> Kakuna	Beedrill (Mega)
Golem	A	Rock/Ground	Geodude -> Graveler	None
Pidgeott	A	Normal/Flying	Pidgey	Pidgeot
Starmie	A	Water/Psychic	Staryu	None
Lapras	A	Water/Ice	None	Lapras (Gigantamax)
Dratini	A	Dragon	None	Dragonair -> Dragonite
Aerodactyl	A	Rock/Flying	None	Aerodactyl (Mega)
Dragonair	A	Dragon	Dratini	Dragonite
Dragonite	A	Dragon/Flying	Dratiti -> Dragonair	None
Electabuzz	A	Electric	Elekid	Electivire
Magmar	A	Fire	Magby	Magmortar
Pinsir	A	Bug	None	Pinsir (Mega)
Koffing	A	Poison	None	Weezing
Weezing	A	Poison/Fairy	Koffing	None
Rhyhorn	A	Ground/Rock	None	Rhydon -> Rhyperior
Rhydon	A	Ground/Rock	Rhyhorn	Rhyperior
Tangela	A	Grass	None	Tangrowth
Kangaskhan	A	Normal	None	Kangaskhan (Mega)
Horsea	A	Water	None	Seadra -> Kingdra
Seadra	A	Water	Horsea	Kingdra
Goldeen	A	Water	None	Seaking
Seaking	A	Water	Goldeen	None
Venasaur	B	Grass/Poison	Bulbasaur -> Ivysaur	Venusaur (Mega, Gigantamax)
Ivysaur	B	Grass/Poison	Bulbasaur	Venusaur
Snorlax	B	Normal	Munchlax	Snorlax (Gigantamax)
Wartortle	B	Water	Squirtle	Blastoise
Seel	B	Water	None	Dewgong
Dewgong	B	Water/Ice	Seel	None
Grimer	B	Poison	None	Muk
Muk	B	Poison	Grimer	None
Shellder	B	Water	None	Cloyster
Cloyster	B	Water/Ice	Shellder	None
Gastly	B	Ghost/Poison	None	Haunter -> Gengar
Haunter	B	Ghost/Poison	Gastly	Gengar
Gengar	B	Ghost/Poison	Gastly -> Haunter	Gengar (Mega, Gigantamax)
Onix	B	Rock/Ground	None	Steelix
Clefable	B	Fairy	Cleffa -> Clefairy	None
Vulpix	B	Fire	None	Ninetales
Ninetales	B	Fire	Vulpix	None
Jigglypuff	B	Normal/Fairy	Igglybuff	Wigglytuff
Golbat	B	Poison/Flying	Zubat	Crobat
Oddish	B	Grass/Poison	None	Gloom -> Vileplume or Bellossom
Hitmochan	B	Fighting	Tyrogue	None
Exxeggutor	B	Grass/Psychic	Exeggcute	None
Pidgey	B	Normal/Flying	None	Pidgeotto -> Pidgeot
Slowpoke	B	Water/Psychic	None	Slowbro or Slowking
Gloom	B	Grass/Poison	Oddish	Vileplume or Bellossom
Vileplume	B	Grass/Poison	Oddish -> Gloom	None
Paras	B	Bug/Grass	None	Parasect
Parasect	B	Bug/Grass	Paras	None
Venonat	B	Bug/Poison	None	Venomoth
Golduck	B	Water	None	Psyduck
Venomoth	B	Bug/Poison	Venonat	None
Graveler	B	Rock/Ground	Geodude	Golem
Poliwrath	B	Water/Fighting	Poliwag -> Poliwhirl	None
Ponyta	B	Fire	None	Rapidash
Drowzee	B	Psychich	None	Hypno
Kingler	B	Water	Krabby	Kingler (Gigantamax)
Electrode	B	Electric	Voltorb	None
Hitmonlee	B	Fighting	Tyrogue	None
Mankey	B	Fighting	None	Primeape -> Annihilape
Primeape	B	Fighting	Mankey	Annihilape
Dugtrio	B	Ground	Diglett	None
Charmeleon	C	Fire	Charmander	Charizard
Caterpie	C	Bug	None	Metapod -> Butterfree
Pidgeot	C	Normal/Flying	Pidgey -> Pidgeotto	Pidgeot (Mega)
Cubone	C	Ground	None	Marowak
Abra	C	Psychic	None	Kadabra -> Alakazam
Kadabra	C	Psychic	Abra	Alakazam
Nidoqueen	C	Poison/Ground	Nidoran -> Nidorina	None
Nidoran-m	C	Poison	None	Nidorino -> Nidoking
Persian	C	Normal	Meowth	None
Psyduck	C	Water	None	Golduck
Growlithe	C	Fire	None	Arcanine
Exeggcute	C	Grass/Psychic	None	Exeggutor
Marowak	C	Ground	Cubone	None
Geodude	C	Rock/Ground	None	Graveler -> Golem
Krabby	C	Water	None	Kingler
Lickitung	C	Normal	Lickilicky	None
Raichu	C	Electric	Pichu -> Pikachu	None
Sandshrew	C	Ground	None	Sandslash
Mr Mime	C	Psychic/Fairy	Mime Jr.	None
Arcanine	C	Fire	Growlithe	None
Poliwag	C	Water	None	Poliwhirl -> Poliwrath or Politoed
Meowth	C	Normal	None	Persian, Meowth (Gigantamax)
Hypno	C	Psychic	Drowzee	None
Voltorb	C	Electric	None	Electrode
Tentacruel	C	Water/Poison	Tentacool	None
Ditto	C	Normal	None	None
Eevee	C	Normal	None	Eeveelutions
Vaporeon	C	Water	Eevee	None
Jolteon	C	Electric	Eevee	None
Flreon	C	Fire	Eevee	None
Porygon	C	Normal	Normal	Porygon2 -> Porygon-Z
Omanyte	C	Rock/Water	None	Omastar
Kabutops	C	Rock/Water	Kabuto	None
Machop	C	Fighting	None	Machoke -> Machamp
Diglett	C	Ground	None	Dugtrio
Bellsprout	C	Grass/Poison	None	Weepinbell -> Victreebel
Spearow	C	Normal/Flying	None	Fearow
Poliwhirl	C	Water	Poliwag	Poliwrath or Politoed
Victreebel	C	Grass/Poison	Bellsprout -> Weepinbell	None
Rapidash	C	Fire	Ponyta	None
Staryu	C	Water	None	Starmie
Scyther	C	Bug/Flying	None	Scizor
Jynx	C	Ice/Psychic	Smoochum	None
Fearow	C	Normal/Flying	Spearow	None
Kabuto	C	Rock/Water	None	Kabutops
Sandslash	C	Ground	Sandshrew	None
Nidoran-f	C	Poison	None	Nidorina -> Nidoqueen
Chansey	C	Normal	Happiny	Blissey
Omastar	C	Rock/Water	Omanyte	None
Tauros	C	Normal	None	None
Rattata	D	Normal	None	Raticate
Weedle	D	Bug/Poison	None	Kakuna -> Beedrill
Nidorina	D	Poison	Nidoran	Nidoqueen
Butterfree	D	Bug/Flying	Caterpie -> Metapod	Butterfree (Gigantamax)
Clarify	D	Fairy	Cleffa	Clefable
Wigglypuff	D	Normal/Fairy	Igglybuff -> Jigglypuff	None
Magikarp	D	Water	None	Gyarados
Raticate	D	Normal	Rattata	None
Metapod	D	Bug	Caterpie	Butterfree
Gyarados	D	Water/Flying	Magikarp	Gyarados (Mega)
Ekans	D	Poison	None	Arbok
Zubat	D	Poison/Flying	None	Golbat -> Crobat
Arbok	D	Poison	Ekans	None
Kakuna	D	Bug/Poison	Weedle	Beedrill

Verdict

In the discussion above, we not only listed but also described all the Gen 1 Pokemon to give you an idea about their strengths and weaknesses. We ranked different Pokemon and placed them into different categories according to their capabilities, but please be aware that we are also fans of the franchise, and our biases had a part in helping us decide the rankings

We hope you enjoyed reading the article and would appreciate any feedback you might have. Please let us know your thoughts in the comments below.